CN206781785U - Microcomputer semiautomatic block equipment - Google Patents
Microcomputer semiautomatic block equipment Download PDFInfo
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- CN206781785U CN206781785U CN201720118833.7U CN201720118833U CN206781785U CN 206781785 U CN206781785 U CN 206781785U CN 201720118833 U CN201720118833 U CN 201720118833U CN 206781785 U CN206781785 U CN 206781785U
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- block equipment
- microcomputer
- semiautomatic
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Abstract
Microcomputer semiautomatic block equipment provides one kind based on computer and optical communication technique, by the condition of all-relay semi-automatic block system and logic electronics, relay, which is substituted, using electronic device realizes automanual logic function, by the use of optical fiber or optical channel substitution cable or aerial line as the transmission medium of information between station, while using the semiautomatic block equipment of the safe transmission of information between safe information transmission technology guarantee station.The block equipment uses cabinet-type structure, and monosystem equipment is made up of Logical processing unit, driver element, collecting unit, monitoring unit and communication unit.All units design double set redundancies, ensure not influenceing the normal use of equipment in the case of single set of fault.The block equipment can compatible existing electric interlocking and computer interlocking, combined by relay safe interface circuit and interlocking, the open condition of exit signal and inaccessible expression information provided from interlocking collection correlated condition and for interlocking.
Description
Technical field
The present invention relates to railway communication, signal field, specifically a kind of microcomputer semiautomatic block equipment.
Background technology
Standing service equipment is to ensure the key technology and equipment of safety of railway traffic, is divided into and automatically closes up, closed between automatic Weather Station
Plug and semiautomatic block, at present, China there is also about 50,000 kilometers of semiautomatic block.
All-relay semi-automatic block system 64D, 64F are used for for many years in section, and its equipment is formed simply, reliable and stable, but with
The progress of technology, some problems existing for all-relay semi-automatic block system also display：
1) all-relay semi-automatic block system equipment is using the devices such as relay assembly, transformer, electric capacity, resistance, circuit knot
Structure is complicated, once problem occurs, processing time is longer, influences conevying efficiency；
2) between the station of all-relay semi-automatic block system two information transfer by the real loop line that communicates, transmission line Louis occur broken string, swinging cross,
The problems such as mixed electricity, ground connection, outer electrical interference, it can influence the use of block equipment；Simultaneously with transportation capacity be laid out adjustment,
Some small stations, intermediate station are progressively being cancelled, this kind of station be cancelled after section semi-automatic station between transmission line extend accordingly
, information transfer implements increasingly difficult；
3) all-relay semi-automatic block system onsite application is single set, and information transfer is also single channel, no automatic diagnostic function, when
When problem occurs for equipment, can have a negative impact to transport.
With the progress of science and technology, railway electrical equipment has also obtained tremendous development, and computer interlocking substitutes electrically collection
Middle interlocking, the common cable of optical cable transmission replacement turn into development trend.
The content of the invention
In order to solve the problems, such as that current all-relay semi-automatic block system is present, all electronic process of signaling at stations equipment is promoted,
Equipment fault is reduced, improves conevying efficiency, the invention provides one kind based on computer and optical communication technique, by relay half
The condition automatically closed up and logic electronics, substitute traditional relay using electronic device and realize the automanual logic work(of relay
Can, substitute traditional cable or aerial line as the transmission medium of information between station by the use of optical fiber or optical channel, while using letter
Cease the microcomputer semiautomatic block equipment that secure transmission technique ensures the safe transmission of information between standing.
The system uses cabinet-type structure, by block equipment, transmission network, monitoring device, input and output and power-supply device
Formed Deng five parts.There are following characteristics：
1) system use with high reliability chip-scale ARM controller, ensure system every single stepping have it is controllable
Property and security；
2) system uses rack form, 2000 × 800 × 600mm of cabinet dimensions；
3) each circuit board is designed with working condition indication lamp, self test failure, communication failure indication lamp；
4) Key Circuit and element are both designed as double set Redundant backups；
5) internal system communication uses High Speed Serial bus, and interior communication uses fiber optic communication；
6) communication port is designed using binary-channel redundancy；
7) system has failure automatic switching function, and two-shipper is able to ensure that when automatically switching does not influence presence states, meets
System high-available requirement；
8) Safety output checks circuit and optocoupler isolation drive mode using output port back production, when detect input with
When exporting inconsistent, cut-out it can export at once, and pass through plate level indicator lamp and monitoring machine alarm；
9) safety collection takes 2 logic circuits and optocoupler to isolate acquisition mode using 2, when two-way collection contrast is inconsistent
When, alarmed by plate level indicator lamp and monitoring machine；
10) each piece of circuit board is designed with hardware monitor (house dog), i.e. hardware function monitor, prevents program from running
Fly；
11) the double ups powers of system configuration, system reliability requirement is met；
12) system power supply and interface devise electromagnetic compatibility and lightning protection.
Present invention also offers a kind of method of work of microcomputer semiautomatic block equipment.Microcomputer Semiautomatic block system is by patrolling
Collect processing unit, driver element, collecting unit, monitoring unit and communication unit composition.
Logical processing unit receives the data message from collecting unit and communication unit, and these data are carried out with processing point
Analysis, is then sent to driver element by output information.
Collecting unit is acquired to the status information of the button of console, track circuit condition and combination relay condition
Receive, and be uploaded to Logical processing unit.
Driver element receives the data from Logical processing unit, so as to enter to indication lamp, relay and the electric bell of correlation
Row control.
Monitoring unit is mainly responsible for the status monitoring of system and alarm is safeguarded.
Communication unit is mainly responsible for the data between transmission each unit and the inaccessible data between station.
The automanual control system of microcomputer has following characteristics：
1) control software uses modularization and Structured Design, standardization of programing；
2) optical cable transmission standing service information is utilized, there is independent identification coding between each station occlusion；
3) host-host protocol meets《RSSP-I railway signals lead to safely agreement (V1.0)》；
4) the safe and reliable of information transfer is ensured using digital signature, data encryption and sequential calibration technology；
5) information transmitted between internal system data and station uses coding techniques, can so avoid data computing internally
With the harm that generation error code is brought in transmitting procedure；
6) information carries out CRC codings and frame head, postamble detection in transmitting procedure, ensures the reliability and peace of data receiver
Quan Xing；
7) system logic condition defines secure side value, meets " fail-safe " principle in railway security；
8) exclusive monitoring machine program, intuitive monitoring equipment state, there is the function of self diagnosis and standby maintenance.
Brief description of the drawings
Fig. 1 is single track all relay semi automa tic block system schematic diagram；
Fig. 2 is the semi-automatic composition frame chart of microcomputer；
Fig. 3 is the semi-automatic structured flowchart of microcomputer；
Fig. 4 is the semi-automatic Logical processing unit theory diagram of microcomputer；
Fig. 5 is the semi-automatic driving collecting unit theory diagram of microcomputer；
Fig. 6 is the semi-automatic monitoring unit theory diagram of microcomputer；
Fig. 7 is to transmit block diagram between microcomputer semi-automatic station；
Fig. 8 is the semi-automatic rack design drawing of microcomputer；
Fig. 9 is the semi-automatic rack logical process layer design drawing of microcomputer.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Semiautomatic block is the voucher using the opening of exit signal as occupied section, and train is i.e. automatic after setting out to close
Exit signal.Blocking formality, open exit signal and the complete arrival for confirming train, are manually participated in；Train
Set out, reach, the information manually handled is transmitted automatically by equipment.It is this by manually handling, confirming and equipment transmits letter automatically
The common equipment for completing blocking action of breath is referred to as semiautomatic block equipment.
The operation principle of microcomputer semiautomatic block equipment：By first station equipment by driving the local in collecting unit acquisition station
Conjugation condition, the switching value collected is converted into digital information and passes to Logical processing unit, Logical processing unit is by information
After logic analysis, corresponding actions instruction is sent to driving collecting unit, and information between the station of encoded processing is passed through
Optical cable transmission passage sends second station to.
The equipment at second station according to information between the station received enter row decoding verification after, with reference to collection our station state by patrolling
The logic analysis of processing unit is collected, corresponding actions instruction is issued to driving collecting unit, completes the associative operation of standing service.
Fig. 1 schematic diagram illustrates the basic functional principle of all-relay semi-automatic block system, adjacent two station respectively have one it is semi-automatic
Block cabinet, by cable communication between standing, inaccessible function is then completed by relay interconnection relation.And microcomputer semiautomatic block
Operation principle is semi-automatic similar with relay, as shown in fig. 7, microcomputer semiautomatic block has changed cable between station into optical cable, by station
Semi-automatic block machine changed microcomputer semiautomatic block rack into.The automanual interchanger of microcomputer can realize twin-channel intersection
Interconnection, twin-channel purpose can be used by reaching monosystem equipment.
Fig. 2 shows the automanual basic composition of microcomputer, includes power-supply device, block equipment, input and output, monitoring are set
Standby and transmission network five is most of.Wherein block equipment is the automanual processing maincenter of microcomputer, and it collects input equipment
Condition carries out computing, and communication data then is sent into neighboring station by transmission network, and display is driven to output with action data and set
It is standby, send status information to monitoring device.
Fig. 3 illustrates the automanual system architecture of microcomputer, mainly by Logical processing unit, driving collecting unit, communication and
Interface unit, monitoring unit etc. form.System uses two-node cluster hot backup redundant fashion as can be seen from Figure 3, adds the steady of system
It is qualitative, reduce fault rate；It can also be seen that transmission channel cross-connect between station, is mutually redundant passage, makes interior communication more
Securely and reliably.
Fig. 4 shows the general principle of Logical processing unit, is made up of two blocks of logical process plates.The master cpu of two boards
The redundancy structure of two-node cluster hot backup is formed, the hardware configuration and principle of the governor circuit of two boards are identical, when any one hair
When raw failure or abnormal state, equipment can fall machine automatically.
Fig. 5 shows the general principle of driving collecting unit, is made up of driving plate and collection plate two parts：
Collection plate is communicated by serial ports with logical process plate, the station for uploading the working condition of this plate in real time and collecting
The data message of interior conjugation condition, including console button and orbit information etc.；
Safe Acquisition Circuit takes 2 logic circuits and optocoupler to isolate acquisition mode using 2, and two-way pair is carried out to same signal
Than collection；
Driving plate is communicated by serial ports with logical process plate, realizes the upload and reception of order, is responsible for drive control
Indicator lamp, electric bell, counter on platform and open relay etc.；
Safe driving circuit has output port back production inspection design and optocoupler isolation drive mode, is inputted when detecting
During with exporting inconsistent, plate level indicator lamp can be immediately passed through and alarmed with monitoring machine, and cut off output.
Fig. 6 shows the principle of monitoring unit, and system monitoring layer is mainly made up of industrial computer and plug-type display, logic
Process plate is sent Monitoring Data to industrial computer by the RS-232 of isolation, and industrial computer is according to obtained Monitoring Data by system shape
State is intuitively shown in by picture on monitoring screen, monitors the running status of whole system in real time.
The main contents that monitoring machine is shown include：
1) station be inscribed, status display of dispatching a car；
2) logic card operates in the display of main and backup status；
3) display that logic card is alarmed with driving plate, collection plate communication failure；
4) driving plate and the display of logic card communication failure alarm, the display of driving plate self test failure alarm；
5) collection plate and the display of logic card communication failure alarm, the display of collection plate self test failure alarm；
6) display of our station and neighboring station optical-fiber communication channel fault alarm；
7) Word message prompting of operation and system mode failure in station.
Fig. 8 illustrates the positive and negative design drawing of the semi-automatic rack of microcomputer, shows the layout of rack and the position of each unit
Put.
Fig. 9 shows the design drawing of the automanual logical process layer of microcomputer, show each plank relative position and
Size.
The method of work of microcomputer semiautomatic block equipment comprises the following steps：Logical operation：Collection plate is collected with reference to bar
After part, logic card is sent the data to, the data message that data that logic card is sent according to collection plate, neighboring station are sent carries out logic
Computing, corresponding information being sent to neighboring station, and issuing correlation output data to driving plate, driving plate drives knot after receiving output data
Relay condition is closed, realizes the function of semiautomatic block；Logic card is while computing by the working condition of block equipment and event
Barrier information is sent to monitoring machine, is recorded by monitoring machine and is safeguarded.
Interaction between standing：Inaccessible data are transmitted by optical cable between two stations：Request inaccessible (0x01), automated response piece (0x02),
Agree to that inaccessible (0x03), train set out (0x04), reach recovery (0x06), (0x09) is restored in cancellation and accident restores (0x0B)；
Every 2 seconds between two stations, timing heartbeat packet is transmitted, it is ensured that channel interrupt can find to alarm in time；Inaccessible number is transmitted between two stations
According to when, recipient, which receives, needs to send receipt after valid data to sender, otherwise sender can be caused to resend the data,
Time-out after sending 3 times；Described logical operation core uses finite state machine model (FSM), and abandoning tradition relay is automanual
Complex logic, make logical relation clear, very clear, facilitate test and evaluation, the increase stability of a system.
Interaction data includes des encryption measure between described station, and transmission ciphertext packet is prevented from intercepting and capturing and forged.
Interaction data includes data signature between described station, and sender is signed using private key, and recipient needs to use
The public key of sender verified, it is just effective to be verified data, can effectively prevent data forge and packet source not only
One possibility.
Interaction employs secure transmission technique between described station, and packet is encoded and verified, effectively reduces mistake
Code, the situation for losing code, make data transmission security reliable.
The single-track lines of China railways at present, it is most of to use 64D semiautomatic block equipment, but 64D semiautomatic blocks
The problems such as fault rate is high, is not easy to safeguard be present in equipment.Microcomputer semiautomatic block equipment is using electronic device and optical cable transmission, double
The technologies such as redundancy are covered, is easy to on-site maintenance, reduces failure, improve conevying efficiency, be with a wide range of applications.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become
Shape should all belong to the protection domain of appended claims of the invention.
Claims (5)
- A kind of 1. microcomputer semiautomatic block equipment, it is characterised in that：Microcomputer semiautomatic block equipment uses cabinet-type structure, including Block equipment, transmission network, monitoring device, input and output and the part of power-supply device five, wherein, described power-supply device respectively with Described input and output, described block equipment connect with described monitoring device, described block equipment respectively with it is described Input and output, described monitoring device connect with described transmission network；Block equipment is by logic card, driving plate, collection plate, electricity Source plate and motherboard composition, wherein, described logic card is connected with described collection plate and described driving plate respectively；Transmission network Using independent double fiber channels, by industrial optical switch cross-connect, it is mutually redundant.
- 2. microcomputer semiautomatic block equipment according to claim 1, it is characterised in that：Described monitoring device uses industry control Machine and plug-type display；Described power-supply device uses two on line type UPS power supplys, using the teaching of the invention it is possible to provide continuous not less than 30 minutes Boat；Described rack porch includes electromagnetic compatibility and lightning protection unit.
- 3. microcomputer semiautomatic block equipment according to claim 1, it is characterised in that：Described logic card, described drive Dynamic plate and described collection plate include hardware function monitor and fault detection module.
- 4. microcomputer semiautomatic block equipment according to claim 1, it is characterised in that：Include filter on described power panel Involve Anti-surging module.
- 5. microcomputer semiautomatic block equipment according to claim 1, it is characterised in that：It is described block equipment, described Transmission network, described input and output and described power-supply device are all using two-node cluster hot backup redundancy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118833.7U CN206781785U (en) | 2017-02-09 | 2017-02-09 | Microcomputer semiautomatic block equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118833.7U CN206781785U (en) | 2017-02-09 | 2017-02-09 | Microcomputer semiautomatic block equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206781785U true CN206781785U (en) | 2017-12-22 |
Family
ID=60703851
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720118833.7U Expired - Fee Related CN206781785U (en) | 2017-02-09 | 2017-02-09 | Microcomputer semiautomatic block equipment |
Country Status (1)
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| CN (1) | CN206781785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305201A (en) * | 2018-11-12 | 2019-02-05 | 湖南中车时代通信信号有限公司 | A kind of simulation testing device and method of rail traffic signal system |
| CN112152665A (en) * | 2020-09-28 | 2020-12-29 | 北京锐为信科技有限公司 | Optical block remote switching system |
-
2017
- 2017-02-09 CN CN201720118833.7U patent/CN206781785U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305201A (en) * | 2018-11-12 | 2019-02-05 | 湖南中车时代通信信号有限公司 | A kind of simulation testing device and method of rail traffic signal system |
| CN112152665A (en) * | 2020-09-28 | 2020-12-29 | 北京锐为信科技有限公司 | Optical block remote switching system |
| CN112152665B (en) * | 2020-09-28 | 2021-07-13 | 北京锐为信科技有限公司 | Optical block remote switching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20220209 |